EP1405712A1 - Procédé et dispositif pour traiter des pièces au moyen d'un rayon laser - Google Patents

Procédé et dispositif pour traiter des pièces au moyen d'un rayon laser Download PDF

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Publication number
EP1405712A1
EP1405712A1 EP20020022072 EP02022072A EP1405712A1 EP 1405712 A1 EP1405712 A1 EP 1405712A1 EP 20020022072 EP20020022072 EP 20020022072 EP 02022072 A EP02022072 A EP 02022072A EP 1405712 A1 EP1405712 A1 EP 1405712A1
Authority
EP
European Patent Office
Prior art keywords
plate
workpieces
pressure plate
pressure
segments
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP20020022072
Other languages
German (de)
English (en)
Other versions
EP1405712B1 (fr
Inventor
Adolf Niederberger
Jie-Wei Chen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Leister Process Technologies
Original Assignee
Leister Process Technologies
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to ES02022072T priority Critical patent/ES2225709T3/es
Application filed by Leister Process Technologies filed Critical Leister Process Technologies
Priority to EP20020022072 priority patent/EP1405712B1/fr
Priority to DE50200675T priority patent/DE50200675D1/de
Priority to AT02022072T priority patent/ATE271458T1/de
Priority to US10/667,926 priority patent/US7282665B2/en
Priority to JP2003337770A priority patent/JP3856777B2/ja
Priority to CNB031326641A priority patent/CN1256232C/zh
Publication of EP1405712A1 publication Critical patent/EP1405712A1/fr
Application granted granted Critical
Publication of EP1405712B1 publication Critical patent/EP1405712B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8126—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/81266—Optical properties, e.g. transparency, reflectivity
    • B29C66/81267—Transparent to electromagnetic radiation, e.g. to visible light
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
    • B23K26/066—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms by using masks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1635—Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1654—Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/45—Joining of substantially the whole surface of the articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81451—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps being adaptable to the surface of the joint
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824—Actuating mechanisms
    • B29C66/8242—Pneumatic or hydraulic drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/843—Machines for making separate joints at the same time in different planes; Machines for making separate joints at the same time mounted in parallel or in series
    • B29C66/8432—Machines for making separate joints at the same time mounted in parallel or in series
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1696—Laser beams making use of masks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8122—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the composition of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9261—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools
    • B29C66/92611—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the displacement of the joining tools by controlling or regulating the gap between the joining tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2909/00—Use of inorganic materials not provided for in groups B29K2803/00 - B29K2807/00, as mould material
    • B29K2909/08—Glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
    • B29K2995/0026—Transparent
    • B29K2995/0027—Transparent for light outside the visible spectrum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/756—Microarticles, nanoarticles

Definitions

  • the present invention relates to a method for processing materials by means of a laser beam, the workpieces being fixed and then are at least partially exposed to a laser beam.
  • the invention relates also a device for machining workpieces with a Laser source, a support as a lower pressure plate for the workpieces and one Radiolucent top plate on the workpieces for fixing the Workpieces during processing as an upper pressure plate.
  • This method of plastic welding with a laser beam is generally known and is also referred to as transmission welding.
  • This Plastic welding method it is important that during the welding process the workpieces are clamped together as an important requirement not only for a good weld connection of the plastics by means of laser radiation the energy metering, but also the clean mechanical contact between the two joining surfaces to be joined together.
  • various methods and devices known, in particular in Allow flat parts to have sufficient contact pressure are known, in particular in Allow flat parts to have sufficient contact pressure.
  • the present invention is therefore based on the object here Possibility to propose a quick and efficient production of this high-precision parts is possible, while at the same time balancing the Pressure differences and component tolerances occur.
  • the individual workpieces are placed on the support segments, so that they are all positioned at the same time and at least partially also fixed can be.
  • a radiolucent Plate for example made of glass, as an upper pressure plate with the workpieces in Brought into contact. This can depend on the design of the invention Procedure only by hanging up, i.e. move the top pressure plate onto the upper workpiece, or by moving the workpieces from below to the upper pressure plate. Following this, the bottom and top Pressure plate pressed together with a predetermined contact pressure.
  • the upper plate is variably adjusted so that the tolerances of the workpieces balanced and yet all workpieces with the same contact pressure be charged.
  • the bracing can take place in such a way that either only individual support segments of the lower pressure plate selectively with the Workpieces to be machined between the upper pressure plate and the respective support segment stretched and exposed to the laser beam, or all Support segments are simultaneously subjected to the required contact pressure become.
  • With the selective pressing there is a firm pressing of the both workpieces only and on the respective workpieces that are currently from be swept over the laser beam. All others, on the lower printing plate Workpieces are only slightly preloaded and are only in the The moment of processing between the upper pressure plate and the respective one Support segment pressed.
  • This process has the advantage that it is suitable for the production of larger ones Masses of workpieces is suitable. For example, the assembly through an interchangeable magazine which reduces the production time is reduced. Due to the tension of the individual parts, these can despite possible fluctuations in the height of the workpieces with sufficient Quality regarding the accuracy of the weld seam can be processed.
  • individual Segment areas of the support elements with a correspondingly predeterminable Contact pressure against the workpieces can, for example, mechanically, pneumatically, hydraulically, servomotively or magnetically defined by individual needles, rollers, pins, plates, etc. become.
  • the training of these individual segment areas depends on the Type of application and the workpieces to be processed.
  • parts of individual support elements, such as a needle can be used are pressed together, facing the lower pressure plate Uneven side, for example with a contour, are formed.
  • the respective Support segment in the vertical direction with a first contact pressure up to Touching the top pressure plate moves and against the top pressure plate pressed and then with a second much higher one Contact pressure is applied during laser beam processing.
  • several support segments can also be used at the same time be moved. This has the advantage that the exchange after the Laser beam processing of the lower plate by a second, already equipped lower plate can be easily implemented.
  • This Swap magazine process increases the production throughput at one Welding device considerably.
  • the lower plate is preferably covered with a Compressed air connection and on a base plate with a Compressed air counterpart arranged, and against the base plate with the force that due to the second, significantly higher contact pressure against the upper pressure plate is generated, pressed and thus the compressed air connection sealed.
  • the upper Pressure plate and the workpiece s a radiolucent elastic plastic film inserted as a compensation element. So that when pressing together possible pressure differences and component tolerances are compensated.
  • the Inserting such a plastic film can also be used in movably mounted Support segments or performed with a rigid lower pressure plate become.
  • the device for machining workpieces has a lower pressure plate with several movable in the vertical direction relative to the lower pressure plate supported support segments, the distance to the upper pressure plate at same contact pressure is variably adjustable.
  • the size of the support segments can essentially be the size of the processed or welded Workpieces correspond.
  • the flexibility can be achieved by a spring bearing be effected, so that the individual support segments to eventual Can adjust manufacturing tolerances.
  • For optimal adaptation to the Workpiece dimensions can be the individual support segments in vertical Direction separately or by means of the pressure generating device can be controlled in groups from one another and moved in the vertical direction be trained. It arises with every workpiece set corresponding distance between the pressing parts (support segment and upper pressure plate).
  • the device has support segments, which have individual segment areas movable in the vertical direction. This can in turn by using smaller pins, tips, rollers, pistons corresponding support surface or the like are formed.
  • This arrangement is one that is specific to the application coordinated adjustment can be realized.
  • an appropriate control device ensures that the respective support segment, just presses the workpieces onto which the Laser beam hits.
  • lower pressure plate as a pressure chamber with a compressed air or several workpiece supports movable in the vertical direction, for example pistons with a large contact surface, pins, needles.
  • the Workpiece supports can be controlled individually, separately from one another.
  • the lower pressure plate has individual resilient bearings Has workpiece supports and the pressure plate movable in the vertical direction is.
  • device with the lower pressure plate as Pressure chamber preferably for compressed air
  • the lower one Plate on the underside of a compressed air opening, with a corresponding Compressed air opening in a pressure plate arranged below is aligned.
  • the compressed air opening in the lower plate is one Through hole and the compressed air opening in the base plate as a hole with a countersink for receiving a seal.
  • This allows one particularly simple sealing without additional hoses or valves.
  • the countersunk seal is determined by the weight of the lower plate pressed together and thus seals at low pressure. This pressure is enough but off, the vertically movable support segments against the to move the upper pressure plate. With the subsequent increased contact pressure is the under pressure plate with just this increased contact pressure against the Base plate pressed so that it also ensures increased sealing becomes.
  • Figure 1 shows an upper pressure plate 3 made of quartz glass on the workpieces 4 and 5, the upper workpiece 4 and the upper pressure plate 3 for one not shown laser beam of a laser source is transparent.
  • the laser beam 2 is in a known manner using suitable optical means in a known manner and shaped so that it is perpendicular to the area to be machined stands and is moved over it. This can be done by appropriate Deflecting mirror, movement of the laser source itself or the support table respectively.
  • the laser beam passes through the upper pressure plate 3 and the upper one Workpiece 4, so that the laser beam in the joining area 6 between the two Workpieces heated the material and thus in this embodiment welding of the two workpieces 4 and 5 causes.
  • To the to select welding areas can be on the upper pressure plate 3 an appropriate mask.
  • the two workpieces 4 and 5 are on Support segments 8 of a lower pressure plate 9 arranged.
  • Both the top Pressure plate and the lower pressure plate can for example by a
  • the usual piston / cylinder arrangement can be moved hydraulically or pneumatically.
  • the upper pressure plate 3 is said to be fixed while the lower pressure plate 9 after arranging the workpieces 4, 5 on the respective support segments 8, as shown in the figure, with a set holding pressure the tops of the upper workpieces 4 against the upper pressure plate presses.
  • Support segments 8 are also conventional, for example Piston / cylinder arrangement, generally as a pressure generating device 10 designated, pneumatically actuated in the vertical direction.
  • the pressure generating device can do so if required can be controlled that only the support segment 8 with a correspondingly higher Contact pressure than the other other support segments 8 ', 8 "is applied, which is just hit by the laser beam 2.
  • the support segment 8 is relaxed and correspondingly, the support segment 8 'is subjected to increased pressure. So that is in this embodiment ensures that the workpieces only for the Are subjected to an increased contact pressure at the time of processing for example for the quality requirements for micro and nanostructures in The moment of processing is necessary so that a dimensionally accurate and exact processing is not possible.
  • the support segments 8 ', 8 are pressurized with compressed air, after which the lower pressure plate 9 via a pressure generating device 10 in the vicinity of upper pressure plate 3 was brought.
  • individual pressure piston 16 of the support segments 8 ', 8 "in the vertical direction moves and can adapt to different thicknesses of workpieces 4, 5, where the contact pressure is the same for everyone. A controlled selection of individuals Edition segment does not take place here.
  • Figure 2 shows the perspective view of a lower pressure plate 9 with individual support segments 8, in which the support segments are not as in the Figure 1 shown, form a flat edition, but instead only one selective.
  • This can be done by individual segment areas, i.e. H. smaller, flat Pads 11 or selectively by means of pins or needles 12.
  • the flat Segment areas 11 can also be created by rollers or other suitable elements can be realized, the in the embodiment according to this figure individual segment areas, be they in flat form (reference number 11) or as pins or needles 12, also individually with a contact pressure can be applied. This can be done by means of pressure chambers 15, as in the 1, take place, however, to individual segment areas 11 can be controlled separately.
  • FIG. 4 shows three different operating states of a device with one lower pressure plate 9 with a pressure chamber 15.
  • the pressure chamber 15 has for example, three that protrude vertically into the pressure chamber Pressure piston 16, whose upper end face 17 serves as a workpiece support.
  • the Printing plate 9 is in turn by means of a cylinder 28 in the vertical direction moved, this, as shown in the figure, in the vertical direction has a larger stroke. No workpieces are shown in the figure.
  • Figure 4A shows the Arrangement at rest with the height h1.
  • Figure 4B the cylinder 28 pressurized, pneumatic or hydraulic, so that the lower Pressure plate 9 already moved close to the upper pressure plate 3 to the height h2 becomes.
  • FIG. 4 shows the Arrangement at rest with the height h1.
  • the cylinder 28 pressurized, pneumatic or hydraulic, so that the lower Pressure plate 9 already moved close to the upper pressure plate 3 to the height h2 becomes.
  • the pressure chamber 15 is then pressurized and the pressure piston 16 moves out of the pressure chamber 15 in the vertical direction.
  • the Stroke of the pressure piston 16 depends individually on the thickness of the Front 17 overlying workpieces. This allows workpiece tolerances be balanced so that the required contact pressure is always guaranteed is.
  • FIG. 5 shows an enlarged representation in a perspective representation (FIG. 5A) and in a sectional view ( Figure 5B) only the lower pressure plate 9 with the Pressure chamber 15 and two pressure pistons 16 on which a workpiece holder 18 is arranged on the end face 17. Located on the workpiece holder 18 there are the workpieces 4, 5 to be welded Example a compressed air connection 19.
  • FIG. 5B it can be seen that the Pressure piston 16 are guided in the pressure chamber 15 via seals 20 in such a way that even a small angle adjustment is possible.
  • FIG. 6A shows the pressure plate 9 on a base plate 21 in another Cross-sectional design.
  • the base plate 21 is in Perspective view and Figure 6C, the detail C enlarged in section shown.
  • the lower pressure plate 9 again has a pressure chamber 15 Pressure piston 16, which carries a workpiece holder 18. Located on this the workpieces 4, 5 against the transparent upper pressure plate 3 be pressed.
  • the lower pressure plate 9 has a through hole 22 the pressure chamber 14 and lies with the flat bottom 23 on the Base plate 21 on. This has a compressed air channel 24 on the Top opens into a cylindrical countersink 25.
  • the reception of a sealing ring 26 As in the Figures 6B and 6C shown, the reception of a sealing ring 26. This seals the superimposed surfaces of the lower pressure plate 9 and the base plate 21 against each other.
  • This arrangement allows and in a highly advantageous and simple manner Way the use of several lower base plates 9 as Workpiece magazines that are exchanged and immediately sent to the Compressed air generation device can be connected.
  • Figure 7 finally shows the support segments in the form of pins 29, individually are movably guided in the pressure chamber 15 in the vertical direction and - as already explained above - can also be acted upon with compressed air.
  • figure 7A shows a single pin 29, FIG. 7B the lower pressure plate 9 with a A large number of pins 29 and FIG. 7C show the arrangement in a sectional illustration the pins on a lower workpiece 5 with a contour on the pins 29 facing side. This allows workpieces with a structured Surface on one side are pressed together exactly.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Plasma & Fusion (AREA)
  • Fluid Mechanics (AREA)
  • Laser Beam Processing (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
EP20020022072 2002-10-02 2002-10-02 Procédé et dispositif pour traiter des pièces au moyen d'un rayon laser Expired - Lifetime EP1405712B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP20020022072 EP1405712B1 (fr) 2002-10-02 2002-10-02 Procédé et dispositif pour traiter des pièces au moyen d'un rayon laser
DE50200675T DE50200675D1 (de) 2002-10-02 2002-10-02 Verfahren und Vorrichtung zum Bearbeiten von Werkstücken mittels eines Laserstrahls
AT02022072T ATE271458T1 (de) 2002-10-02 2002-10-02 Verfahren und vorrichtung zum bearbeiten von werkstücken mittels eines laserstrahls
ES02022072T ES2225709T3 (es) 2002-10-02 2002-10-02 Procedimiento y dispositivo para trabajar piezas con rayos laser.
US10/667,926 US7282665B2 (en) 2002-10-02 2003-09-22 Method and apparatus for processing articles with a laser beam
JP2003337770A JP3856777B2 (ja) 2002-10-02 2003-09-29 物品加工方法および装置
CNB031326641A CN1256232C (zh) 2002-10-02 2003-09-30 用于加工工件的方法和装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20020022072 EP1405712B1 (fr) 2002-10-02 2002-10-02 Procédé et dispositif pour traiter des pièces au moyen d'un rayon laser

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EP1405712A1 true EP1405712A1 (fr) 2004-04-07
EP1405712B1 EP1405712B1 (fr) 2004-07-21

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EP20020022072 Expired - Lifetime EP1405712B1 (fr) 2002-10-02 2002-10-02 Procédé et dispositif pour traiter des pièces au moyen d'un rayon laser

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US (1) US7282665B2 (fr)
EP (1) EP1405712B1 (fr)
JP (1) JP3856777B2 (fr)
CN (1) CN1256232C (fr)
AT (1) ATE271458T1 (fr)
DE (1) DE50200675D1 (fr)
ES (1) ES2225709T3 (fr)

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EP2110221A4 (fr) * 2007-02-05 2016-11-23 Toray Industries Appareil et procédé de fabrication de stratifié

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US7538295B2 (en) * 2005-04-21 2009-05-26 Hewlett-Packard Development Company, L.P. Laser welding system
DE502005006727D1 (de) * 2005-09-06 2009-04-09 Trumpf Werkzeugmaschinen Gmbh Vorrichtung zur aufnahme von plattenförmigen materialien für zumindest einen trennvorgang
US8216416B2 (en) 2008-06-06 2012-07-10 Knoll, Inc. Chair and method for assembling the chair
DE102008052489B4 (de) * 2008-10-21 2012-04-05 Ibs Filtran Kunststoff-/ Metallerzeugnisse Gmbh Vorrichtung zum Verschweißen zweier Schweißartikel und Verfahren zum Betreiben der Vorrichtung
JP2010253500A (ja) * 2009-04-23 2010-11-11 Sumitomo Electric Ind Ltd レーザ溶接方法
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JP5596954B2 (ja) * 2009-10-08 2014-09-24 キヤノン株式会社 液体供給部材、液体供給部材の製造方法及び液体吐出ヘッドの製造方法
CN101898419B (zh) * 2010-04-02 2013-05-15 深圳市大族激光科技股份有限公司 塑料激光焊接方法
EP2698098A4 (fr) 2011-04-13 2014-10-29 Kowa Co Campimètre
GB2493538A (en) * 2011-08-10 2013-02-13 Bae Systems Plc Forming a structure by added layer manufacture
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CN102319956B (zh) * 2011-08-16 2015-04-22 北京博晖创新光电技术股份有限公司 膜动聚合物微流控芯片的基板与隔膜焊接方法
DE102013216113A1 (de) 2013-08-14 2015-03-05 Homag Holzbearbeitungssysteme Gmbh Beschichtungsaggregat
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US11819940B2 (en) 2019-02-05 2023-11-21 Dukane Ias, Llc Systems and methods for laser-welding a workpiece with a laser beam that reaches inaccessible areas of the workpiece using multiple reflecting parts
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Also Published As

Publication number Publication date
DE50200675D1 (de) 2004-08-26
EP1405712B1 (fr) 2004-07-21
JP3856777B2 (ja) 2006-12-13
CN1256232C (zh) 2006-05-17
ATE271458T1 (de) 2004-08-15
CN1496778A (zh) 2004-05-19
US7282665B2 (en) 2007-10-16
JP2004122236A (ja) 2004-04-22
ES2225709T3 (es) 2005-03-16
US20040065406A1 (en) 2004-04-08

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